| 제목 |
PA6 장섬유 강화 열가소성 복합소재의 압축성형으로 제작된 차량용 시트 백 프레임의 취출 온도에 따른 형상 정밀도 분석 |
| 분야 |
생산기술 |
| 언어 |
Korean |
| 저자 |
이환주(국민대학교, 한국생산기술연구원), 김흥규(국민대학교), 김동언(한국생산기술연구원), 전용준(한국생산기술연구원), 김봉구(광명산업), 전채염(탑아이엔디), 금종원(탑아이엔디) |
| Key Words |
LFT(long fiber reinforced thermoplastic, 장섬유 강화 열가소성 복합소재), CFRP(탄소섬유 강화 고분자 복합소재), Seat back frame(시트백 프레임), Compression molding(압축성형), Thermal gradients(열분포도), Shape distortion(형상 변형), Warpage(뒤틀림) |
| 초록 |
This paper proposes a manufacturing process for a vehicle front seatback by compression molding a long-fiber reinforced thermoplastic(LFT). A plate-shaped PA6 LFT intermediate, preheated to a moldable temperature, was placed inside the compression mold. Then, finite element analysis, applied with the results of the rheological properties of PA6-LFT, was performed to derive the optimal number of intermediate plates and their arrangement in the mold. Ejection at a low temperature improved the thickness accuracy of areas with severe shape changes, such as ribs and bends. Furthermore, warpage measurement by using 3D scan showed that taking it out at a low temperature improved shape precision in the longitudinal and width directions of the seatback. |
| 원문(PDF) |
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